ClipArt ETC
"Diagrammatic section of young bird. n., Spinal cord; v., vertebra; r., rib; L., liver; G., gut; som. (dotted), somatic layer of mesoblast; spl. (dotted), splanchnic layer of mesoblast; ao., aorta; R., reproductive organ; K., kidney." -Thomson, 1916

Bird Section

"Diagrammatic section of young bird. n., Spinal cord; v., vertebra; r., rib; L., liver; G., gut; som.…

"A falcon. mn., Mandible; C., cere; N., nostril; E.C., ear covert; th.W., thumb wing; C., wing coverts; D., dorsal coverts; S., secondaries; P., primaries; R., rectrices; A., ankle; Mt., tarso-metatarsus; I., first toe." -Thomson, 1916

Falcon

"A falcon. mn., Mandible; C., cere; N., nostril; E.C., ear covert; th.W., thumb wing; C., wing coverts;…

"Young bearded griffin (Gypaetus barbatus). Showing the feather-tracts or pterylae, for instance those on the breast (PT.). E., ear; P., web or propatagium; TH., thumb; PR., bases of primary feathers; S., bases of secondary feathers; B.S., bare streak without pterylae; CL., cloaca; R., bases of rectrices or tail feathers." -Thomson, 1916

Lammergeier

"Young bearded griffin (Gypaetus barbatus). Showing the feather-tracts or pterylae, for instance those…

"Female urogenital organs of pigeon. K., Kidney with three lobes; u., ureter; cl., cloaca; ov., ovary; od., oviduct; f.t., funnel at end of oviduct; r.r.od., rudimentary right oviduct." -Thomson, 1916

Female Pigeon Urogenital Organs

"Female urogenital organs of pigeon. K., Kidney with three lobes; u., ureter; cl., cloaca; ov., ovary;…

"Male urogenital organs of pigeon. T., testes; V., base of inferior vena cava; S.R., suprarenal bodies; K., kidneys with three lobes (1, 2, 3); u., ureter; v.d., vas deferens; vs., seminal vesicle; cl., cloaca." -Thomson, 1916

Male Pigeon Urogenital Organs

"Male urogenital organs of pigeon. T., testes; V., base of inferior vena cava; S.R., suprarenal bodies;…